# CVE-2026-40874

> Vulnerability.

## Description

mailcow: dockerized is an open source groupware/email suite based on docker. In versions prior to 2026-03b, no administrator verification takes place when deleting Forwarding Hosts with `/api/v1/delete/fwdhost`. Any authenticated user can call this API. Checks are only applied for edit/add actions, but deletion can still significantly disrupt the mail service. Version 2026-03b fixes the vulnerability.

## Key facts

- **CVE ID:** CVE-2026-40874
- **Published:** 2026-04-21
- **CWE codes:** CWE-284

## Primary sources

- NIST NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-40874

## Citation

> AI Analytics. CVE-2026-40874. Retrieved 2026-07-31 from https://api.ai-analytics.org/cve/CVE-2026-40874. Derived from NIST NVD. Licensed CC0.

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